整体浇筑长大混凝土结构早期开裂问题探讨

过震文  程宝辉

(上海同盛大桥建设有限公司)

摘要：整体浇筑、运输、拼装已经成为长大结构重要的施工方法之一，但结构的早期开裂问题也日益凸现。结合工程实例进行了详细的理论计算，对整体浇筑长大结构的施工具有一定的指导意义。

关键词：高性能混凝土；整体浇筑；长大结构；裂缝；水化热

                                      Discussion on the early cracking of whole-casting and

                                           large-scale concrete structure

                                                 GUO Zhen-wen, CHENG Bao-hui

Abstract:, whole-casting, transportation and making up have become one of important methods of large-scale structure. However, the problem of cracking in early stage has become serious. Here detailed calculation has been taken with actual engineering, which will be significant for the construction of large-scale structure with one piece casting.

Key words: HPC, whole-casting , large-scale structure, cracks, hydration heat